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Journal of Environmental Quality Abstract -

Evaluation of Commercial Odor Control Agents for Suppressing Escherichia coli in Swine Manure Slurry


This article in JEQ

  1. Vol. 31 No. 6, p. 2120-2123
    Received: Nov 14, 2001

    * Corresponding author(s): toppe@agr.gc.ca
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  1. Della Johnstona,
  2. Ralph Chapmana,
  3. Daniel Masséb and
  4. Edward Topp *a
  1. a Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, ON, Canada N5V 4T3
    b Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, P.O. Box 90, 2000 Route 108 East, Lennoxville, QC, Canada J1M 1Z3


Ten commercially available manure odor control agents were evaluated in bench-scale laboratory microcosms for their ability to inhibit or kill Escherichia coli, a commonly used indicator of fecal pollution and a potential pathogen. At manufacturer recommended rates, none of the agents reduced viable populations of E. coli in pure cultures or in swine manure slurry. However, at rates 10-fold higher than those recommended by the manufacturer, EnviroPur rapidly reduced viable populations of E. coli Accelerated death of E. coli was observed at temperatures as low as 4°C. Chemical analysis of EnviroPur indicated that it contains alkylphenol polyethoxylates, common industrial surfactants. These results suggest that at manufacturer-recommended rates, the odor-controlling agents would not be effective at suppressing E. coli in stored swine manure slurry.

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Copyright © 2002. American Society of Agronomy, Crop Science Society of America, Soil Science SocietyPublished in J. Environ. Qual.31:2120–2123.